If \(abc\ne 0,\) is \(\dfrac{\dfrac{a}{b}}{c}=\dfrac{a}{\dfrac{b}{c}}?\)

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If \(abc\ne 0,\) is \(\dfrac{\dfrac{a}{b}}{c}=\dfrac{a}{\dfrac{b}{c}}?\)

(1) \(a = 1\)
(2) \(c = 1\)

Answer: B

Source: Official Guide